| American Attitudes | British Attitudes |
|---|---|
| Viewed Oregon as a valuable natural resource for expansion, farming, and Pacific access. | Saw Oregon as a potential rival to Canadian colonies and a fur-trade preserve. |
| Claimed right via exploration (Lewis & Clark), settlement, and "manifest destiny." | Claimed right via prior discovery, Hudson's Bay Company presence, and treaty (1818 joint occupancy). |
| Willing to fight—"Fifty-four forty or fight!" (1844 campaign slogan). | Unwilling to risk war—prioritized global empire, trade, and US relations. |
| Secured control via 1846 Oregon Treaty (49th parallel). | Ceded claim south of 49° to avoid conflict; retained Vancouver Island. |
Result: US gained present-day WA, OR, ID, MT, WY; UK kept BC. Peaceful resolution reflected shifting power dynamics.